Question

Twelve workers can do a piece of work in 18 hours. How many will be requirded to do the same task in 12 hours.​

Answer 1

Answer:

12 workers take 18 hours for completion of the work.

so it requires (12×18) worker-hours

but since the work is to be completed in 12 hours, the workers required would be

( 12×18 ) / 12 = 18 workers